It's forty years from tomorrow, and a black hole has accidentally fallen into the Earth's core. A team of scientists frantically searches for ways to prevent the mishap from causing harm, only to discover another black hole already feeding relentlessly at the core - one that could destroy the entire planet within two years.
But some even argue that the only way to save the Earth is to let its human inhabitants become extinct: to let the million-year evolutionary clock rewind and start all over again.
